期刊
WASTE MANAGEMENT
卷 78, 期 -, 页码 980-991出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2018.07.016
关键词
Thiobisphenols; Reclaiming agent; Reclaimed rubber; Chemo-thermomechanical devulcanization
资金
- R&D Center for Valuable Recycling (Global-Top R&BD Program) of the Ministry of Environment, Republic of Korea [2016002240002]
- Korea Environmental Industry & Technology Institute (KEITI) [ARQ201606103003] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, thiobisphenols, 4,4'-dithiobis(2,6-di-t-butylphenol), was synthesized and used as novel reclaiming agent for the chemo-thermomechanical devulcanization process of waste rubber powder (WRP). The devulcanization process was carried out in an internal mixer at 180 degrees C and 200 degrees C using different content of reclaiming agent such as thiobisphenols. The degree of devulcanization was estimated by measuring sol content, crosslink density, and Mooney viscosity of the reclaimed rubber (RR). Devulcanization conditions have been studied further with respect to the processability, and the mechanical properties of the revulcanized reclaimed rubber (REVR). Photomicrographs from scanning electron microscopy (SEM) indicate the improvement of the coherency in the REVR with increasing degree of devulcanization. Dynamic properties were also studied for REVR. Again, in order to establish the effect of thiobisphenols as reclaiming agent, the devulcanization of WRP and revulcanization of RR were also evaluated in this study. (C) 2018 Elsevier Ltd. All rights reserved.
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